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PMR446 (Private Mobile Radio, 446 MHz) is a licence-exempt service in the UHF radio frequency band and is available for business and personal use in most countries throughout the European Union. [1] PMR446 is typically used for small-site, same-building and line of sight outdoor activities. Equipment used ranges from consumer-grade to ...
The radio spectrum is the part of the electromagnetic spectrum with frequencies from 3 Hz to 3,000 GHz (3 THz ). Electromagnetic waves in this frequency range, called radio waves, are widely used in modern technology, particularly in telecommunication. To prevent interference between different users, the generation and transmission of radio ...
These services (Channel 4, Channel 4 +1, E4, E4 +1, More4, Film4) provided for the Sky platform with commercials directed at the Ireland advertising region are encrypted and require a subscription. Therefore, the frequencies of these services are not included in this list. UltraHD. An ultra HD receiver is required.
DAB+: Ambur Radio, Radio Apni Awaz, Big City Radio, Blue Dot Radio, BritAsia Radio, BRMB, Brumside Radio, Club Asia Radio, Darbar Sahib Radio, Fun Kids, Gaydio, Gulshan Radio, Radio Maria England, Nation Radio UK, Non-Stop Fun Kids, Sabras Radio, Sanskar Radio, Switch Radio, Unity FM, Voice of Islam Radio and Radio XL.
e. Amateur radio frequency allocation is done by national telecommunication authorities. Globally, the International Telecommunication Union (ITU) oversees how much radio spectrum is set aside for amateur radio transmissions. Individual amateur stations are free to use any frequency within authorized frequency ranges; authorized bands may vary ...
Digital mobile radio. Digital mobile radio ( DMR) is a digital radio standard for voice and data transmission in non-public radio networks. It was created by the European Telecommunications Standards Institute (ETSI), [ 1] and is designed to be low-cost and easy to use. DMR, along with P25 phase II and NXDN are the main competitor technologies ...
LPD433 (low power device 433 MHz) is a UHF band in which license free communication devices are allowed to operate in some regions. The frequencies correspond with the ITU region 1 ISM band of 433.050 MHz to 434.790 MHz. The frequencies used are within the 70-centimeter band, which is currently otherwise reserved for government and amateur ...
Spectrum analyzer. A spectrum analyzer measures the magnitude of an input signal versus frequency within the full frequency range of the instrument. The primary use is to measure the power of the spectrum of known and unknown signals. The input signal that most common spectrum analyzers measure is electrical; however, spectral compositions of ...